// #include <stdio.h>
int x = 1;
int y = 2;
int z = 3;
int a = 4;
int b = 5;
int c = 6;
int d = 7;
int e = 8;
int f = 9;
int g = 10;
int h = 11;
int i = 12;
int j = 13;
int k = 14;
int l = 15;
int m = 16;
int n = 17;
int o = 18;
int p = 19;
int q = 20;

int main() {
    // Local variables
    int x1 = 1;
    int x2 = 2;
    int x3 = 3;
    int x4 = 4;
    int x5 = 5;
    int x6 = 6;
    int x7 = 7;
    int x8 = 8;
    int x9 = 9;
    int x10 = 10;
    int x11 = 11;
    int x12 = 12;
    int x13 = 13;
    int x14 = 14;
    int x15 = 15;
    int x16 = 16;
    int x17 = 17;
    int x18 = 18;
    int x19 = 19;
    int x20 = 20;

    // Perform some operations on global variables
    x = x + 1;
    y = y + 2;
    z = z + 3;
    a = a + 4;
    b = b + 5;
    c = c + 6;
    d = d + 7;
    e = e + 8;
    f = f + 9;
    g = g + 10;
    h = h + 11;
    i = i + 12;
    j = j + 13;
    k = k + 14;
    l = l + 15;
    m = m + 16;
    n = n + 17;
    o = o + 18;
    p = p + 19;
    q = q + 20;

    // Perform some operations on local variables
    x1 = x1 * 2;
    x2 = x2 * 2;
    x3 = x3 * 2;
    x4 = x4 * 2;
    x5 = x5 * 2;
    x6 = x6 * 2;
    x7 = x7 * 2;
    x8 = x8 * 2;
    x9 = x9 * 2;
    x10 = x10 * 2;
    x11 = x11 * 2;
    x12 = x12 * 2;
    x13 = x13 * 2;
    x14 = x14 * 2;
    x15 = x15 * 2;
    x16 = x16 * 2;
    x17 = x17 * 2;
    x18 = x18 * 2;
    x19 = x19 * 2;
    x20 = x20 * 2;

    int ret = x1 + x2 + x3 + x4 + x5 + x6 + x7 + x8 + x9 + x10 + x11 + x12 + x13 + x14 + x15 + x16 + x17 + x18 + x19 + x20
    + x + y + z + a + b + c + d + e + f + g + h + i + j + k + l + m + n + o + p + q;
    // printf("ret = %d\n", ret);
    return ret;
}